Loch Ness is a large, deep freshwater loch in the Scottish Highlands extending for approximately 37 km (23 miles) southwest of Inverness. The Loch's surface is 15.8 metres above sea level. Loch Ness is best known for the alleged sightings of the legendary Loch Ness Monster ("Nessie"), although it is scenic in its own right. Boat cruises operate from various locations along its shores giving tourists the chance to look for the monster.